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never always usually sometimes
She has piano lessons on Monday Her favorite sport is swimming She usually goes swimming She thinks it is interesting
fell down fell over fell back (回去) fell apart (不成功)
going to her local dentist. spending a lot of money buying products. using free trial offers online. brushing her teeth many times a day.
has bitten bit had been bitting bites
how long she usually spends on her homework what she was doing these days if she has finished her homework on time When the speech will begin.
how long she usually spends on her homework what she was doing these days if she has finished her homework on time when the speech will begin
always never usually sometimes
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